Beater for threshing-machines or separators.



I M. TUMA.

BEATER FOR THRESHING MACHINES 0R SEPARATORS.

APPLICATION FILED SEPT. 1, 1914. 1,1 50,908. Patented Aug. 24, 1915.

a z a? v:51 3% 74422229525: J72 z/znzar:

a 272 Ema.

. Wig/ 716 MARTIN TUMA, OF NEW PRAGUE, -MINNESOTA.

BEATER FOR THRESHING-MACHINES OR SEPARATORS.

Specification of Letters ?atent.

Patented Aug. 24, 19155.

Application filed September 11, 1914. Serial No. 861,321.

To all whom it may concern Be it known that I, MARTIN TUMA, a sub- New Prague, in the county of Lesueur and State of Minnesota, have invented a new and useful Improvement in Beaters for Threshing-Machines or Separators, of which the" following is a specification.

My invention relates to improvements in heaters, in which fluted members are adapted to revolve, and cooperate with the separating or feeding tables in a threshing machine or separator, for the purpose of toss ing and loosening the straw and more completely separating the grain.

With prior constructions matted straw or grain as received from the band cutter and feeder into the machine is only partly loosened and separated by the feeding or separating tables, and particularly is this true when the grain is damp, or when any weeds or foreign growth are miXed with the grain. My invention is designed to overcome this objection by thoroughly separat ing or isolating the straw apart. This object is obtained by the mechanism illustrated in the accompanying drawing, in which Figure 1 is a side elevation of an ordinary threshing machine'or separator having my improvement applied thereto, a portion of the frame being broken away and the improvement shown part in section for the purpose of more clearly illustrating the mechanism; Fig. 2 is a plan of a detail of the construction illustrated in Fig. 1, part of the structure being broken away and shown in section, and Figs. 3 and 4 are plans of my improved beaters, forming part of my invention.

In the drawing, A indicates a threshing machine, or separator, having the usual separating or feeding tables B and C, portions of which are illustrated in Figs. 1 and 2. These tables are of the usual slat conbars 7 and 8 positioned longitudinally alongside of the shaft 2 and mounted by their ends upon the supports 9, carrying disks 10, which are fanned with inturned bosses 11. The ends of the fluted arms 7 and 8 are secured by the rivets or pins 12 to said bosses, and the supports 9 are rigidly secured tothe' shaft 2 by set bolts 13 or other suitable means. The outer faces of the disks 10 revolve between the bearings 4 and limit longitudinal movement of the shaft 2 in its bearingaand one end of the shaft 2 projects beyond one of the bearings 4 a sufflcient distance to carry a drive'pulley 15 and a power transmission sprocket 16. The shaft 2 is driven by a belt 17 passing over the pulley 15 and over another pulley 18, which is secured to a suitable drive shaft 19, such the one which usually revolves the fan of the threshing machine. By this construction the heater is adapted to be driven at suitable speed in the direction of the arrows illustrated in Fig. 1. The outward projecting portions or flutes 20 on the arm 7 are disposed diametrically opposite the inwardly projecting'po'rtions 21 on the arm 8, said arms being disposed diametrically opposite each other and lying with the sides of their fluted portions in s'ubstantially a single plane, thereby causing the fluted portions to most effectively toss and loosen the straw by delivering a succession of sharp impacts thereto as the beater revolves.

The heater D is disposed in the space adjoining the contiguous ends of the separating tables B and C, with the arms of the beater across the path of the straw as it is fed forwardly by the table B, so as to most effectivelv toss and loosen the straw as it is advancing through the machine. The heater E is also disposed across the path of the straw a short distance beyond the beater D and above the adjacent end of the table C. This beater instead of having complete double beater arms as in the case of the beater D is provided with single arms 30 and 31, which are fluted in the same manner as the arms 7 and 8, and plates 32 and 33 of somewhat similar construction to the members 10 are employed on the shaft 3, each of said plates being provided with a single inturned boss 34. Positioned on the shaft 3, midway between the plates 32 and 33 is an intermediate plate 35, having a boss 36 on one side, corresponding with the boss 34 on the memher 32,and a boss 37 on the other side corre sponding with the boss 3A of the member 33. The arms 30 and 31 are secured to thesebosses on opposite sides of the shaft as illustrated by rivets or pins 88, and lie in a single plane, so that the arms 30 and 31 are adapted as the shaft 3 revolves in the direction of the arrows to successivelv deliver impacts against the straw, there being only half as many impacts delivered by the beater E as by the beater I) when the heaters revolve at the same speed. These impacts however, are more abrupt and serve to break up any matted straw which is not separated by the beater D. The shaft 3 is disposed parallel to the shaft 2 and is journaled in the bearings 4 with one end projecting and carrying the sprockets 39, over which a chain belt 4:0 also passing around the sprocket 16 transmits motion from the shaft 2. The shafts therefore revolve at substantially the same speed. 1

In operation the beater D tosses and loosens the straw as it is received from the table B and shatters the grain. The straw after receiving the impacts which are delivered by the beater D is tossed upon the beater E, which in turn delivers a succession of more severe blows, only not as numerous as those delivered by the beater D against the straw, thus completely loosening the straw and shattering any unloosened grain. The straw after being acted upon by the beater E falls upon the table C, and the usual process of the machine continues.

In accordance with the patent statutes, I have described the principles of operation of my invention, together with the appa- Gopies of this patent may be obtained for five cents each, by addressing Washington, D. O.

ratus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the in vention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. A beater for threshing machines comprising a shaft, a support carried by said shaft adjacent either of its ends, and a fluted arm connected at its extremities to said supports on diametrically opposite sides of said shaft, the fluted portions of each arm being arranged equidistant from the corresponding portions of the other arm throughout their length and projecting in the same direction,

and means for revolving said shaft.

2. A beater for threshing machines com. prising "spaced parallel shafts, one of said shafts carrying fluted arms on diametrically opposite sides thereof, said arms extending substantially throughout the entire length 01 their shaft, and the other of said shafts carrying fluted arms on diametrically opposite sides thereof, each of said last named arms being secured at one of its extremities adj acent opposite ends of its shaft and at its other extremity midway of its shaft, and means for rotating said shafts in synchronism.

MARTIN TUMA. Witnesses:

FRANK MoLNIKA, THOMAS HLINKO.

the Commissioner of Patents, 

